e) if this supplement is tested on another sample of cows, there is a 95% chance that their average weight gain will be between 45 and 67 pounds. is this a correct interpretation of the confidence interval? choose the correct answer below. a. the interpretation is incorrect. there is a 95% chance that another sample will have its average weight gain within two standard deviations of the true mean. b. the interpretation is incorrect. there is a 95% chance that another sample will have its average weight gain within two standard deviations of the sample proportion. c. the interpretation is correct, assuming all conditions and assumptions are met. d. the interpretation is incorrect. one knows that another sample will have its average weight gain within two standard deviations of the sample proportion.